more gradient optimizer tests

fix evaluate

Not needed assert removed# This is a combination of 3 commits.

more gradient optimizer tests

fix evaluate

Not needed assert removed

Author: novikov-alexander

test/Tensorflow.UnitTest/PythonTest.cs

@@ -211,27 +211,6 @@ public void assertAllCloseAccordingToType<T>(
             var givenAsDouble = given.Select(x => Convert.ToDouble(x)).ToArray();
             CollectionAssert.AreEqual(expected, givenAsDouble, new CollectionComparer(eps));
         }
-        
-        public void assertAllCloseAccordingToType<T>(
-            double value,
-            NDArray array2,
-            double eps = 1e-5) where T : struct
-        {
-            // TODO: check if any of arguments is not double and change toletance
-            // remove array2AsDouble and cast expected instead
-            var givenAsDouble = array2.Select(x => { double v = x; return v; }).ToArray();
-
-            if (array2.shape.IsScalar)
-            {
-                double value2 = array2;
-                Assert.AreEqual(value, value2, eps);
-                return;
-            }
-            var array1 = np.ones_like(array2) * value;
-            CollectionAssert.AreEqual(array1.ToArray(), array2.ToArray(), new CollectionComparer(eps));
-
-            //TODO: Assert.IsTrue(np.allclose(array1, array2, rtol: eps));
-        }
 
         public void assertProtoEquals(object toProto, object o)
         {